The Seattle Lindy Extravaganza is back for another year of dancing, live music, and summer in the beautiful Pacific Northwest! What is SLX? Three nights + two afternoons + one late night of live music with nationally and internationally acclaimed musicians including Albert Alva, Jonathan Ng, and Jonathan Doyle! â Two days of diverse and engaging classes ranging from Lindy to House dancing! â— Many opportunities to experience Seattle and become a part of its dance community! What makes SLX unique? Afternoon live jazz jam with professionals and amateurs jamming together! Dancing in the streets and parks of downtown Seattle! An opening BBQ to kick off the event in a spirit of integration and inclusion! Unique competitions where you won't know what happens next!